Guide and Exam Tips: Version Control System

What is Version Control System?
A version control system (VCS) is a tool that allows multiple individuals to work on a project at the same time. It is essential in collaborative environments to manage code changes and prevent conflicts in the code.

Why is it Important?
VCS is important as it provides a history of code changes, allows for code branching and merging, and aids in finding bugs or other issues with the code. It also gives the ability to revert a code base back to a previous state if necessary.

How it works?
It works by saving different versions of the code. You can commit changes to the VCS which saves that current state of the project, allowing you or others to return to this state at any point.
Exam Tips: Answering Questions on Version Control System
1. Understand the terminology: Make sure you know the difference between terms like 'commit', 'push' and 'pull'.
2. Understand how to use it: Basic commands for a VCS (like Git) can come up in exams, so be sure you know how to perform common tasks like creating a repository, making commits, and resolving merge conflicts.
3. Preparing for scenario-based questions: You might be presented with a situation where multiple people are working on a project. Understand how a VCS can solve or prevent problems in these cases.